Pirate lair gets pigs at random (10)
I believe the answer is:
plagiarist
'pirate' is the definition.
(I know that pirate can be written as plagiarist)
'lair gets pigs at random' is the wordplay.
'gets' says to put letters next to each other.
'random' is an anagram indicator.
'lair'+'pigs'+'at'='lairpigsat'
'lairpigsat' is an anagram of 'PLAGIARIST'.
(Other definitions for plagiarist that I've seen before include "One copying" , "Stealer of others' work" , "Literary pirate" , "sort of thief" .)